Graining ink



i 0 'ing of a graining ink which, will not require a Patented Mar. 29, 1932 UNITED STATES "TENTT Fm-E JosEP r M. VERDEROSA, or PARLIN, NEW massif, ASSIGNOR 'ro,E.r-. DU roNrpnw NEMOURS & COMPANY, or wrnmmeron, DELAWARE, n-cortronn'rron or LA;

- WARE No Drawing.

This invention relates to the production of grained efiects on metal or wood andmore particularly to an improved ink for the pro-v duction of such effects. r v

Heretofore, two distinct types of material have been used for the production of grained effects on metal or inferior wood to imitate expensive and beautiful wood. First, a pigment dispersed in an oleo-resinous vehicle which was usedto produce the design of the Wood grain upon a ground coat of a different shade; and second, pigment dispersed in Water containing a small amount of a water soluble adhesive used over a ground in the same manner. With the advent of pyroxylin base finishes, attempts have been made to use a pyroxylin enamel as a base or ground coat, to then produce the designs With either the 'oleo-resinous or the aqueous type of graining the designs to-be produced. The slow oxidation of the oil, or in other ,WOI'ClS, the long drying period required slows up the work; and even when dry, the oleo-resinous. graining ink is readily attacked by a top coat of clear pyroxylin lacquer. The lacquer causes a liftingof the ink and producesuns'ightly wrinkles in the finish. When the aqueous type of graining ink is used, such as the frequently recommended dispersion of pigment in stale beer, the effect of a top coat of lacquer is quite satisfactory and the drying time is very short, but the period of time from application to setting up is entirely too short to permit producing of the desired designs:

This invention has as an object the provid-' GRAINING INKJ Application filed m 9, 1928. Serial m nswear.

ink which mibesausrattdiiiy roxylinjenainelj base and! covered with a. .pyroxylin lacquerftop coat :A still further object'is to provide such a graining ink which 1 r can be diluted with waterto'producelighter Other i 't il was. he is colors. after.

lowing invention of a composition comprise j. s a i er n' pi m n n thy s p01 and water witha'small amount of a grim soluble in ibothethylene glycol and water...

lv f d hat a pigment so dispersed in} ethylene glycol. a'nd-Qwater .With a small a amount of a gumsoluble inflboth. ethylene glycol and water. will produce a graiiiing' ink which will give satisfactory results, and the followingis an example "of such acomposition made in accordance with my inven-,;

These .objectsare i' aupiiaeafb theffol- H 2.5 Water 7.5 Ethylene glyco1 60.03:

In place of gum arabic,fl may substitute any gum which is soluble in both water and eth- I ylene glycol; I 1 a i yimproved compositions are valuble as graining' inks as herein described because they do not contain oils requiring a prolonged period of oxidation, or derivativesof a oils which tend to'slower drying andare' otherwise unsuitable. for the attainmentfof the objects of the invention. improved compositions are, on the other hand, characterized by asufliciently long period of time I between applicationand setting up to permit" the carrying'out of all necessary work, even where the designs are produced on large panels.

grained surface.

The ethylene glycol, being cornpletely volatile, offers no difiiculty when atop coat of pyroxylin lacquer is applied to thelf 5 The surface tension char k long period of time for oxidation, but which acteristics of the composi on he ein dea will not on the other handdry too quickly to permit the producing of desired designs. I A

further object is to providesuch a graining which would not be possiblewith the o1eo-,.Q-

scribed are such that effects,v can be obtainedw resinous graining inksand my compositions have the additional advantage that they may be diluted with water'if lighter colors aredesired'. v This air drying graining ink may be used 5' equallywell for hand graining or machine graining. v p

Ase-many apparently widely different embodiments of this invention may be made without departing from the spirit and scope "thereof,--.it"is' to be understood that 'I do not limit? myself '=to the specifienembodiments thereof except as defined in the appended claims. 7

Iclaim: V a 615 1, A quick drying graining composition capable of receiving a graining design over a commercially workable area'before' drying, j which comprises a pigment dispersed in a "vehicle comprisinga solution consisting of 30isparts' by weight of pigment, 2.5 parts of gumarabic,'7.5 parts 'ofwater and 60 parts ofeth'ylene glycol. V H 2. A' quick drying graining composition 7 capable of receiving a'grainingdesig'n over a commercially workable area: beforedrying,

i which comprises a pigment dispersed in a Vefhicle eomprisin'g'a solution'consisting of parts by weight of pigment, 2.5 partsby jweight of a'gumSOlubIe in water'and ethylene 20' glycol, 7.5 parts ofiwater and parts of ethyle ne'glycol. v t

Intes'timony whereof, Iafiix my signature.

i 'JOSEPH]M.-VERDEROSA. 

